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Finding the Fourth Proportional to 56,703.60, 85,055.40 and 14,583.60

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Solution

The fourth proportional to 56,703.60, 85,055.40 and 14,583.60 is: 21,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,703.60 : 85,055.40 = 14,583.60 : x
  2. Step 2: Convert to fraction form
    56,703.60/85,055.40 = 14,583.60/x
  3. Step 3: Cross multiply
    56,703.60x = 85,055.40 × 14,583.60
  4. Step 4: Simplify right side
    56,703.60x = 1,240,413,931.44
  5. Step 5: Solve for x
    x = 1,240,413,931.44/56,703.60
  6. Step 6: Final answer
    x = 21,875.40

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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.