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Finding the Fourth Proportional to 15,120,692.40, 22,681,038.60 and 15,120,692.40

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Solution

The fourth proportional to 15,120,692.40, 22,681,038.60 and 15,120,692.40 is: 22,681,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120,692.40 : 22,681,038.60 = 15,120,692.40 : x
  2. Step 2: Convert to fraction form
    15,120,692.40/22,681,038.60 = 15,120,692.40/x
  3. Step 3: Cross multiply
    15,120,692.40x = 22,681,038.60 × 15,120,692.40
  4. Step 4: Simplify right side
    15,120,692.40x = 342,953,007,983,126.69
  5. Step 5: Solve for x
    x = 342,953,007,983,126.69/15,120,692.40
  6. Step 6: Final answer
    x = 22,681,038.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.