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Finding the Fourth Proportional to 46,989.36, 70,483.68 and 11,929.32

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Solution

The fourth proportional to 46,989.36, 70,483.68 and 11,929.32 is: 17,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,989.36 : 70,483.68 = 11,929.32 : x
  2. Step 2: Convert to fraction form
    46,989.36/70,483.68 = 11,929.32/x
  3. Step 3: Cross multiply
    46,989.36x = 70,483.68 × 11,929.32
  4. Step 4: Simplify right side
    46,989.36x = 840,822,373.50
  5. Step 5: Solve for x
    x = 840,822,373.50/46,989.36
  6. Step 6: Final answer
    x = 17,893.89

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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.