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Finding the Fourth Proportional to 60,421.40, 90,632.10 and 44,869.40

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Solution

The fourth proportional to 60,421.40, 90,632.10 and 44,869.40 is: 67,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,421.40 : 90,632.10 = 44,869.40 : x
  2. Step 2: Convert to fraction form
    60,421.40/90,632.10 = 44,869.40/x
  3. Step 3: Cross multiply
    60,421.40x = 90,632.10 × 44,869.40
  4. Step 4: Simplify right side
    60,421.40x = 4,066,607,947.74
  5. Step 5: Solve for x
    x = 4,066,607,947.74/60,421.40
  6. Step 6: Final answer
    x = 67,304.10

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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.