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Finding the Fourth Proportional to 42,646.40, 59,627.20 and 42,646.40

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Solution

The fourth proportional to 42,646.40, 59,627.20 and 42,646.40 is: 59,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646.40 : 59,627.20 = 42,646.40 : x
  2. Step 2: Convert to fraction form
    42,646.40/59,627.20 = 42,646.40/x
  3. Step 3: Cross multiply
    42,646.40x = 59,627.20 × 42,646.40
  4. Step 4: Simplify right side
    42,646.40x = 2,542,885,422.08
  5. Step 5: Solve for x
    x = 2,542,885,422.08/42,646.40
  6. Step 6: Final answer
    x = 59,627.20

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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.