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Finding the Fourth Proportional to 9,075,692.40, 12,715,417.20 and 9,075,692.40

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Solution

The fourth proportional to 9,075,692.40, 12,715,417.20 and 9,075,692.40 is: 12,715,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,075,692.40 : 12,715,417.20 = 9,075,692.40 : x
  2. Step 2: Convert to fraction form
    9,075,692.40/12,715,417.20 = 9,075,692.40/x
  3. Step 3: Cross multiply
    9,075,692.40x = 12,715,417.20 × 9,075,692.40
  4. Step 4: Simplify right side
    9,075,692.40x = 115,401,215,244,869.28
  5. Step 5: Solve for x
    x = 115,401,215,244,869.28/9,075,692.40
  6. Step 6: Final answer
    x = 12,715,417.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.