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Finding the Fourth Proportional to 67,872.48, 93,681.84 and 38,074.08

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Solution

The fourth proportional to 67,872.48, 93,681.84 and 38,074.08 is: 52,552.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872.48 : 93,681.84 = 38,074.08 : x
  2. Step 2: Convert to fraction form
    67,872.48/93,681.84 = 38,074.08/x
  3. Step 3: Cross multiply
    67,872.48x = 93,681.84 × 38,074.08
  4. Step 4: Simplify right side
    67,872.48x = 3,566,849,870.71
  5. Step 5: Solve for x
    x = 3,566,849,870.71/67,872.48
  6. Step 6: Final answer
    x = 52,552.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.