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Finding the Fourth Proportional to 28,592.80, 42,802.80 and 25,482.40

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Solution

The fourth proportional to 28,592.80, 42,802.80 and 25,482.40 is: 38,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.80 : 42,802.80 = 25,482.40 : x
  2. Step 2: Convert to fraction form
    28,592.80/42,802.80 = 25,482.40/x
  3. Step 3: Cross multiply
    28,592.80x = 42,802.80 × 25,482.40
  4. Step 4: Simplify right side
    28,592.80x = 1,090,718,070.72
  5. Step 5: Solve for x
    x = 1,090,718,070.72/28,592.80
  6. Step 6: Final answer
    x = 38,146.60

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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.