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Finding the Fourth Proportional to 52,455.64, 72,389.64 and 28,583.32

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Solution

The fourth proportional to 52,455.64, 72,389.64 and 28,583.32 is: 39,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,455.64 : 72,389.64 = 28,583.32 : x
  2. Step 2: Convert to fraction form
    52,455.64/72,389.64 = 28,583.32/x
  3. Step 3: Cross multiply
    52,455.64x = 72,389.64 × 28,583.32
  4. Step 4: Simplify right side
    52,455.64x = 2,069,136,244.80
  5. Step 5: Solve for x
    x = 2,069,136,244.80/52,455.64
  6. Step 6: Final answer
    x = 39,445.45

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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.