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Finding the Fourth Proportional to 70,273.16, 96,999.54 and 46,421

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Solution

The fourth proportional to 70,273.16, 96,999.54 and 46,421 is: 64,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.16 : 96,999.54 = 46,421 : x
  2. Step 2: Convert to fraction form
    70,273.16/96,999.54 = 46,421/x
  3. Step 3: Cross multiply
    70,273.16x = 96,999.54 × 46,421
  4. Step 4: Simplify right side
    70,273.16x = 4,502,815,646.34
  5. Step 5: Solve for x
    x = 4,502,815,646.34/70,273.16
  6. Step 6: Final answer
    x = 64,075.90

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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.